Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada)

Autores
Zodrow, Erwin L.; D`angelo, José Alejandro; Werner Zwanziger, Ulrike; Chen, Banghao
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Hoffmann's species Neuropteris Scheuchzeri in Keferstein 1827 is generally but not exclusively identified by its 1-4 mm long trichomes or hairs, though he did not mention nor illustrate them in the diagnosis of the species.  Basal Cantabrian-age compressions of the species, including 'Odontopteris subcuneata', from Sydney Coalfield, Canada, are oxidized/macerated by Schulze's process from 3 hours to 12 days to track solubility patterns of the trichomes or hairs, and files. Proposed is also a spectrochemical model for Macroneuropteris (ex Neuropteris) scheuchzeri based on carbon 13 nuclear magnetic resonance (13C NMR) experiments, combined with Fourier transform infrared (FTIR) spectroscopy. M. scheuchzeri is chemically similar to other medullosaleans in respect to high aliphatic and low aromatic contents, though FTIR analysis signals preservation variability. Hair invariably drops from compressions during HF treatment, it is opaque, pointed and not organically attached to compressions. A secretory origin is hypothesized that requires confirmation, including explanation of physiological function. Files-hair-trichomes, besides dissolving at different rates when oxidized, are physicomorphologically distinguishable from one another; hence hair and trichomes are not synonymous, as assumed by some authors.Morphological/functional-group changes occur across the basal frond dichotomy (bfd). Apart from the 'pinnule' differences is that above bfd trifoliate foliage shows hair and trichomes, whereas below bfd 'O. subcuneata', for example, shows hair, files, and some trichomes. Most conspicuous in functional-group differences is that aliphatic side-chain branching is lower below than above bfd. It is suggested that aspects of Zimmermann's telomic theory may offer an explanation for the phenomenon.
Fil: Zodrow, Erwin L.. Cape Breton University. Paleobaiogy Laboratory; Canadá
Fil: D`angelo, José Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Werner Zwanziger, Ulrike. Dalhousie University Halifax; Canadá
Fil: Chen, Banghao. Dalhousie University Halifax; Canadá
Materia
Hair
Secretion
Trichomes
Files
Compressions
Seed Fern
Spectrochemical Data
Carboniferous
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/27961

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network_name_str CONICET Digital (CONICET)
spelling Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada)Zodrow, Erwin L.D`angelo, José AlejandroWerner Zwanziger, UlrikeChen, BanghaoHairSecretionTrichomesFilesCompressionsSeed FernSpectrochemical DataCarboniferoushttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Hoffmann's species Neuropteris Scheuchzeri in Keferstein 1827 is generally but not exclusively identified by its 1-4 mm long trichomes or hairs, though he did not mention nor illustrate them in the diagnosis of the species.  Basal Cantabrian-age compressions of the species, including 'Odontopteris subcuneata', from Sydney Coalfield, Canada, are oxidized/macerated by Schulze's process from 3 hours to 12 days to track solubility patterns of the trichomes or hairs, and files. Proposed is also a spectrochemical model for Macroneuropteris (ex Neuropteris) scheuchzeri based on carbon 13 nuclear magnetic resonance (13C NMR) experiments, combined with Fourier transform infrared (FTIR) spectroscopy. M. scheuchzeri is chemically similar to other medullosaleans in respect to high aliphatic and low aromatic contents, though FTIR analysis signals preservation variability. Hair invariably drops from compressions during HF treatment, it is opaque, pointed and not organically attached to compressions. A secretory origin is hypothesized that requires confirmation, including explanation of physiological function. Files-hair-trichomes, besides dissolving at different rates when oxidized, are physicomorphologically distinguishable from one another; hence hair and trichomes are not synonymous, as assumed by some authors.Morphological/functional-group changes occur across the basal frond dichotomy (bfd). Apart from the 'pinnule' differences is that above bfd trifoliate foliage shows hair and trichomes, whereas below bfd 'O. subcuneata', for example, shows hair, files, and some trichomes. Most conspicuous in functional-group differences is that aliphatic side-chain branching is lower below than above bfd. It is suggested that aspects of Zimmermann's telomic theory may offer an explanation for the phenomenon.Fil: Zodrow, Erwin L.. Cape Breton University. Paleobaiogy Laboratory; CanadáFil: D`angelo, José Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Werner Zwanziger, Ulrike. Dalhousie University Halifax; CanadáFil: Chen, Banghao. Dalhousie University Halifax; CanadáE Schweizerbartsche Verlags2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/27961Zodrow, Erwin L.; D`angelo, José Alejandro; Werner Zwanziger, Ulrike; Chen, Banghao; Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada); E Schweizerbartsche Verlags; Palaeontographica Abteilung B-palaophytologie; 291; 4-6; 2-2014; 141-1530375-0299CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.schweizerbart.de/papers/palab/detail/290/81895/Hair_trichomes_files_and_spectrochemistry_of_Macroneuropteris_scheuchzeri_Basal_Cantabrian_Sydney_Coalfield_Canadainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:00:29Zoai:ri.conicet.gov.ar:11336/27961instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:00:29.713CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada)
title Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada)
spellingShingle Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada)
Zodrow, Erwin L.
Hair
Secretion
Trichomes
Files
Compressions
Seed Fern
Spectrochemical Data
Carboniferous
title_short Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada)
title_full Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada)
title_fullStr Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada)
title_full_unstemmed Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada)
title_sort Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada)
dc.creator.none.fl_str_mv Zodrow, Erwin L.
D`angelo, José Alejandro
Werner Zwanziger, Ulrike
Chen, Banghao
author Zodrow, Erwin L.
author_facet Zodrow, Erwin L.
D`angelo, José Alejandro
Werner Zwanziger, Ulrike
Chen, Banghao
author_role author
author2 D`angelo, José Alejandro
Werner Zwanziger, Ulrike
Chen, Banghao
author2_role author
author
author
dc.subject.none.fl_str_mv Hair
Secretion
Trichomes
Files
Compressions
Seed Fern
Spectrochemical Data
Carboniferous
topic Hair
Secretion
Trichomes
Files
Compressions
Seed Fern
Spectrochemical Data
Carboniferous
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Hoffmann's species Neuropteris Scheuchzeri in Keferstein 1827 is generally but not exclusively identified by its 1-4 mm long trichomes or hairs, though he did not mention nor illustrate them in the diagnosis of the species.  Basal Cantabrian-age compressions of the species, including 'Odontopteris subcuneata', from Sydney Coalfield, Canada, are oxidized/macerated by Schulze's process from 3 hours to 12 days to track solubility patterns of the trichomes or hairs, and files. Proposed is also a spectrochemical model for Macroneuropteris (ex Neuropteris) scheuchzeri based on carbon 13 nuclear magnetic resonance (13C NMR) experiments, combined with Fourier transform infrared (FTIR) spectroscopy. M. scheuchzeri is chemically similar to other medullosaleans in respect to high aliphatic and low aromatic contents, though FTIR analysis signals preservation variability. Hair invariably drops from compressions during HF treatment, it is opaque, pointed and not organically attached to compressions. A secretory origin is hypothesized that requires confirmation, including explanation of physiological function. Files-hair-trichomes, besides dissolving at different rates when oxidized, are physicomorphologically distinguishable from one another; hence hair and trichomes are not synonymous, as assumed by some authors.Morphological/functional-group changes occur across the basal frond dichotomy (bfd). Apart from the 'pinnule' differences is that above bfd trifoliate foliage shows hair and trichomes, whereas below bfd 'O. subcuneata', for example, shows hair, files, and some trichomes. Most conspicuous in functional-group differences is that aliphatic side-chain branching is lower below than above bfd. It is suggested that aspects of Zimmermann's telomic theory may offer an explanation for the phenomenon.
Fil: Zodrow, Erwin L.. Cape Breton University. Paleobaiogy Laboratory; Canadá
Fil: D`angelo, José Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Werner Zwanziger, Ulrike. Dalhousie University Halifax; Canadá
Fil: Chen, Banghao. Dalhousie University Halifax; Canadá
description Hoffmann's species Neuropteris Scheuchzeri in Keferstein 1827 is generally but not exclusively identified by its 1-4 mm long trichomes or hairs, though he did not mention nor illustrate them in the diagnosis of the species.  Basal Cantabrian-age compressions of the species, including 'Odontopteris subcuneata', from Sydney Coalfield, Canada, are oxidized/macerated by Schulze's process from 3 hours to 12 days to track solubility patterns of the trichomes or hairs, and files. Proposed is also a spectrochemical model for Macroneuropteris (ex Neuropteris) scheuchzeri based on carbon 13 nuclear magnetic resonance (13C NMR) experiments, combined with Fourier transform infrared (FTIR) spectroscopy. M. scheuchzeri is chemically similar to other medullosaleans in respect to high aliphatic and low aromatic contents, though FTIR analysis signals preservation variability. Hair invariably drops from compressions during HF treatment, it is opaque, pointed and not organically attached to compressions. A secretory origin is hypothesized that requires confirmation, including explanation of physiological function. Files-hair-trichomes, besides dissolving at different rates when oxidized, are physicomorphologically distinguishable from one another; hence hair and trichomes are not synonymous, as assumed by some authors.Morphological/functional-group changes occur across the basal frond dichotomy (bfd). Apart from the 'pinnule' differences is that above bfd trifoliate foliage shows hair and trichomes, whereas below bfd 'O. subcuneata', for example, shows hair, files, and some trichomes. Most conspicuous in functional-group differences is that aliphatic side-chain branching is lower below than above bfd. It is suggested that aspects of Zimmermann's telomic theory may offer an explanation for the phenomenon.
publishDate 2014
dc.date.none.fl_str_mv 2014-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/27961
Zodrow, Erwin L.; D`angelo, José Alejandro; Werner Zwanziger, Ulrike; Chen, Banghao; Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada); E Schweizerbartsche Verlags; Palaeontographica Abteilung B-palaophytologie; 291; 4-6; 2-2014; 141-153
0375-0299
CONICET Digital
CONICET
url http://hdl.handle.net/11336/27961
identifier_str_mv Zodrow, Erwin L.; D`angelo, José Alejandro; Werner Zwanziger, Ulrike; Chen, Banghao; Hair-trichomes-files, and spectrochemistry of Macroneuropteris scheuchzeri (Basal Cantabrian, Sydney Coalfield, Canada); E Schweizerbartsche Verlags; Palaeontographica Abteilung B-palaophytologie; 291; 4-6; 2-2014; 141-153
0375-0299
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.schweizerbart.de/papers/palab/detail/290/81895/Hair_trichomes_files_and_spectrochemistry_of_Macroneuropteris_scheuchzeri_Basal_Cantabrian_Sydney_Coalfield_Canada
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv E Schweizerbartsche Verlags
publisher.none.fl_str_mv E Schweizerbartsche Verlags
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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